Plow.



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J. BUCHANAN.

PLOW.

APPLIOATION FILED JULY so, 1906 Patented Jan. 26, 1909.

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PLOW.

APPLICATION FILED JULY 30, 1906.

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Patented Jan. 26, 1909'.

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JUDSON BUCHANAN, OF OHATTANOOGA, TENNESSEE.

PLOW.

Specification of Letters Patent.

Patented Jan. 26 1909.

Application filed July 30, 1906. Serial No. 328,392.

To all whom it may concern:

Be it known that I, JUnsoN BUCHANAN, a citizen of the United States,residing at Chattanooga, in the county of Hamilton and State ofTennessee, have invented a new and useful Improvement in Plows, of whichthe following is a specification, reference being had to theaccompanying drawing.

My improvement relates to plows having revolving mold-boards, andparticularly to side-hill or reversible rotary mold-board plows.Heretofore such plows have been made reversible by means of mechanismfor reversing the direction of the mold-board, the latter beingpartially rotated upon an approximately upright axis. In my im provedplow, two rotary mold-boards are used, one facing in the properdirection to be operative when the low is moved in one di rection andthe ot er standing in proper position for action when the plow moves inthe opposite direction, and both said disks being in operative relationwith a single raising and lowering mechanism, 'said relation being suchas that when either of said disks is being lowered, the other will beraised. But my invention does not include the general construction ofthe device nor a separate raising and lowering mechanism for each diskbut is limited to a single lifting device.

In the accompanying drawings, Figure 1 is a plan of the plow embodyingmy improvement Fig. 2 is a side elevation; Fig. 3 is a detail section onthe line 3-3 of Fig. 1; Fig. 4 is a section on the line 4-4 of Fig. 1;Fig. 5 is a section on the line 55 of Fig. 1, looking toward the right;Fig. 6 is a section on the line 6-6 of Fig. 1, looking toward the left;Fig. 7 is a detail view of'a bearing plate and fixed plate by means ofwhich the disks are secured to the plow frame.

Referring to said drawings, 1 is the land wheel and 2, 2 are the furrowwheels ordinarily used in such plows. Said wheels constitute thecarrying wheels of the plow. The beam, 3, has its ends, 4, turnedlaterally, and the furrow wheels, 2, are secured to said ends by meansof crank-form axles, 5, resting in upright bearings, 6, and havinghorizontal arms, 7, to the free ends of which are coupled horizontallinks or bars, 8, which lead to controlling levers of ordinary form andwhich are not shown in the drawings, for the reason that they are wellknown in this art and do not relate to the present invention.

The middle of the beam, 8, is bent laterally to the same side as are theends, 4, to form a V-shape portion, 9, and a bridge-form piece, 10,extends horizontally across the open side of said V-shape portion, andto the middle of said bridge-form piece is secured a block, 11, havingan upright aperture receiving the upright arm, 12, of the angleform axlepiece, 13, to which said land wheel, 1, is applied. Said arm, 12, may beheld non-rotatable in said block, 11, or it may be rotatable to alimited extent, if so desired, so that the plane of said land wheel willautomatically assume a slight inclination to an upright plane which isparallel to the line of draft. But, as such adjustability of said wheelis known in the art and does not constitute a part of the presentinvention, I deem it unnecessary to describe such construction indetail. is an inner bridge-piece, 14, which is parallel to the line ofdraft, and to the middle of said bridge-piece, 14, is secured a block,15, to which is hinged the inner end of a tongue, 16. To each lateralportion of the beam, 4, is applied a stop, 17, and a latch, 18, whichconstitute locking mechanism by means of which the tongue may be securedin either of two positions parallel to the line of draft. When thetongue is secured in one of said positions by one of said lockingdevices, the plow is adapted to be drawn in the direction of the freeend of said tongue, and when said tongue has been released and turnedhorizontally upon its pivot through half a circle and secured by theother of said locking devices, the plow is adapted to be drawn in theopposite direction.

Two revolving mold-boards or disks, 19, 19, are applied to the outeroblique ,faces of the V-shape portion, 9, of the beam in such manner asto permit bodily upward and downward movement. Each such disk isjournaled in a bearing, 20, which bearing is supported by a plate, 21,and said plate is secured to an upright reciprocatory shaft, 22, at theupright edge of the said plate which is the nearer the furrow wheels. Tothe outer face of the V-sha e portion of the beam is immovably aiiixedan upright plate, 23, hav- Within said \i-shape portion, 9,

ing along its upright edge which is the nearer the furrow wheels aflange, 24, extending over the adjacent edge of the bearing plate, 21.Mounted upon the fixed plate, 23, is an upright bearing, 25, throughwhich rises the shaft, 22. Within the V-shape portion of the beam is athird bridge-piece, 26, upon which is mounted a segmental rack, 27; andto such rack is applied a rack lever, 28. Adj acent to and concentricwith such rack is a horizontal bearing, 29, in which rests a horizontalrock-shaft, 30. One end of said shaft is rigidly attached to the racklever, 28. To the other end of said shaft is rigidly applied across-head, 30.. To each end of said crosshead is coupled one end of alink, 31, and said link rises thence and has its other end looselycoupled to the upper end of one of the up.- right reciprocatory shafts,22.

From the foregoing it, will be understood that the shifting of the racklever, 28, in either direction will effect the raising of one disk andat the same time the lowering of the other, and that by setting saidrack lever in its middle position, both said disks may be held out ofthe ground when the plow is not in use.

When one of the disks is cutting, the ground resses it toward theadjacent portion of t e beam and the adjacent fixed plate, 23, so thatthe bearing plate, 21, is pressed against said fixed plate. Thus saiddisk retains its proper position, notwithstanding 'the fact that itsbearing plate is hinged on an upright axis by means of the shaft, 22,the link, 81, being coupled loosely so as to permit a limited rotationof said shaft. This construction leaves the disk free to trail when itis the rear disk and is by accident low enough to be engaged by theground. A rigid seat-post, 32, sup orts a seat, 33. Said post rises fromthe lock, 15, and is loosely surrounded by the tongue, 16, so that saidost forms the journal for said tongue.

I c aim as my invention:

1. In a rotary mold-board plow, the combination with carrying wheels anda frame adapted for two-way draft, of two disks in a line parallel tothe draft line and directed oppositely and away from each otherconformably to the opposite drafts and vertically adjustable, and asingle raising and lowering mechanism for simultaneously raising eitherand lowering the other of said disks in upright lines, substantially asdescribed.

2. In a rotary mold-board low, the-combination with carrying whee s anda frame adapted for two-way draft, and a reversible ton ue, of two disksin a line parallel to the dra t line and directed oppositely and awayfrom each other conformably to the opposite drafts and adjustable inupright llnes,

and a single raising and lowering mechanism for simultaneously raisingeither and lowering the other of said disks, substantially as described.

3. In a rotary mold-board low, the combination with carrying whee s anda frame adapted for two-way draft, of two disks in a line parallel tothe draft line and directed oppositely and away from each otherconformably to the opposite drafts and adjustable in upright lines, anda single rack-andlever raising and lowering mechanism for simultaneouslyraising either and lowering the other of said disks, substantially asdescribed.

4. In a rotary mold-board plow, the combination with carrying wheels anda frame adapted for two-way draft, of two disks in a line parallel tothe draft. line and directed oppositely and away from each otherconformably to the opposite drafts, vertically adjustable members suporting said disks, and a single raising and lowering mechanism forraising either and at the same time lowering the other of said members,substantially as described.

5. In a rotary mold-board plow, the combination with carrying wheels anda. frame, of two disks directed oppositely and away from each other in aline parallel to the line of draft, vertically adjustable and partiallyrotatable members sup .orting said disks, and a single raising andowering mechanism in operative relation with both of said members forraising one and at the same time lowering the other, substantially as.described.

6. In a rotary mold-board low, the combination with carrying wheels anda beam having a middle \I-shape portion, of two disks directedoppositely and vertically adjustable upon said \l-shape portion, and asingle raising and lowering mechanism in operative relation. with bothof said disks for simultaneously raising either and lowering the other,substantially as described.

7. In a rotary mold-board plow, the combination with carrying wheels anda frame, of two disks in a line parallel to the draft line directedoppositely and away from each other and vertically adjustable, a rockshaft, a cross-head applied to said rock shaft and having one end inoperative relation with one of said disks and the other end with theother of said disks, a lever applied to said rock shaft, and means forsecurlng said lever in different positions, substantially as described.

8. In a rotary mold-board low, the combination with carrying wheel; anda frame laterally extended at its middle and adapted for two-way draft,of two disks in a line parallel to the draft linev and directedoppositely conformably to the opposite drafts and twenty-seventh day ofJuly, in the year one adjustable up and down, and a single raisingthousand nine hundred and siX. and lowering mechanism for simultaneouslyraising either and lowering the other of said JUDSON BUCHANAN 5 disks,substantially as described. Witnesses:

In testimony whereof I have signed my 0. F. JANES,

name, 111 presence of tWo Witnesses, this E WATKINS.

